Letter | Published:

Energy spectrum of diffuse component of cosmic soft γ rays

  • An Erratum to this article was published on 29 May 1975

Abstract

IN this paper we present new measurements on the diffuse component of cosmic soft gamma rays in the energy range 0.1–4 MeV obtained with a balloon-borne telescope. These measurements show that the energy spectrum gradually steepens from E−2.3 to E−2.8 as the energy increases from 100 to 500 keV and becomes less steep thereafter, consistent with the presence of a hump in the MeV region.

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